CN103475226A - Single-chip isolating regulated power supply module - Google Patents
Single-chip isolating regulated power supply module Download PDFInfo
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- CN103475226A CN103475226A CN2012101847251A CN201210184725A CN103475226A CN 103475226 A CN103475226 A CN 103475226A CN 2012101847251 A CN2012101847251 A CN 2012101847251A CN 201210184725 A CN201210184725 A CN 201210184725A CN 103475226 A CN103475226 A CN 103475226A
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- power supply
- power output
- output transformer
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- supply module
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Abstract
A single-chip isolating regulated power supply module relates to the technical field of power supply modules, contains a PCB baseboard package body (1) and a plastic package body (2) and is characterized in that the PCB baseboard package body (1) contains a PWM generator IC and a power output transformer; and the PWM generator IC and the power output transformer form a flyback circuit. The single-chip isolating regulated power supply module can be adopted to improve voltage stability and raise work efficiency, is small in size, has high reliability and is convenient to use.
Description
Technical field:
The present invention relates to the power module technical field, relate in particular to a kind of one chip isolation power module of voltage regulation.
Background technology:
Isolated form DC-DC power module is widely used in Industry Control and the fields such as application, automotive electronics, medical electronics, testing equipment and Aero-Space, because employing module establishment power-supply system has, the design cycle is short, reliability is high, system upgrade is easy to characteristics, and the application of modular power source is more and more extensive.Simultaneously, due to the continuous popularization of data service and distributed power supply system, isolated modular power source has been obtained larger growth in recent years, but because the power of isolated stabilized voltage power supply, efficiency, volume, reliability etc. have limited its application.Isolated form micro-power DC-DC commonly used mainly contains surface mount (SMT), single row direct insert formula (SIP), dual inline type (DIP) at present, internal circuit generally adopts push-pull circuit, the advantage of sort circuit is mainly that circuit structure is simple, the design of transformer is also fairly simple, but push-pull circuit is not with voltage stabilizing function; Rear class adopts the LDO voltage stabilizing, though voltage regulation result is better, and owing to having adopted LDO, Efficiency Decreasing, its efficiency is generally below 70%; Owing to having adopted rear class voltage stabilizing chip, input voltage is higher, and when 5V exports, input voltage generally, more than 9V, makes the LDO normal operation to guarantee enough pressure drops.Its operating frequency is lower simultaneously, and generally at 300Khz, so its transformer size is larger, causes the oversize of module, usually at 32.50*20.50*8.00mm; Part adopts optocoupler to be isolated with the module of voltage stabilizing output, uses optocoupler to mean the decline of reliability.
Summary of the invention:
The purpose of this invention is to provide a kind of one chip isolation power module of voltage regulation, it can improve voltage stabilizing, increases work efficiency, and volume is little, and reliability is high, easy to use.
In order to solve the existing problem of background technology, the present invention adopts following technical scheme: it comprises PCB substrate package body and plastic-sealed body, and described PCB substrate package body comprises PWM IC, power output transformer occur; IC occurs in PWM and power output transformer has formed circuit of reversed excitation.
The toroidal transformer of the toroidal core coiling that described power output transformer is iron sial magnetic material.
Operation principle of the present invention is: adopt flyback topological structure formula, when access voltage, the switching tube conducting, the power output transformer storage power, when switching tube disconnects, power output transformer is sent to load and output filter capacitor by the energy of storage, the energy provided while with building-out capacitor, providing load current separately, the frequency of adjusting PWM by detection power output transformer primary current is carried out the ON time of driving switch pipe, realizes voltage stabilizing function, does not need optocoupler or the 3rd winding; By circuit of reversed excitation is carried out to optimized configuration, can realize easily the optimization of current work performance, increase work efficiency, dwindle the purpose of small product size.
The present invention can improve voltage stabilizing, increases work efficiency, and volume is little, and reliability is high, easy to use.
The accompanying drawing explanation:
Fig. 1 is structural representation of the present invention.
Embodiment:
Referring to Fig. 1, this concrete described mode adopts following technical scheme: it comprises PCB substrate package body 1 and plastic-sealed body 2, and described PCB substrate package body 1 comprises PWM IC, power output transformer occur; IC occurs in PWM and power output transformer has formed circuit of reversed excitation.
The toroidal transformer of the toroidal core coiling that described power output transformer is iron sial magnetic material.
The operation principle of this embodiment is: adopt flyback topological structure formula, when access voltage, the switching tube conducting, the power output transformer storage power, when switching tube disconnects, power output transformer is sent to load and output filter capacitor by the energy of storage, the energy provided while with building-out capacitor, providing load current separately, the frequency of adjusting PWM by detection power output transformer primary current is carried out the ON time of driving switch pipe, realize voltage stabilizing function, do not need optocoupler or the 3rd winding; By circuit of reversed excitation is carried out to optimized configuration, can realize easily the optimization of current work performance, increase work efficiency, dwindle the purpose of small product size.
The advantage of this embodiment is: can realize that input voltage is 4V-16VDC, the voltage transitions of output voltage 5VDC, power output can reach 3W, in temperature range the precision of voltage regulation ± 5%, the modular power source that can cross backflow solder flux technology of the embedding of double pin surface-adhered type; In the 5V input, the 5V delivery efficiency can reach 78%, than the product efficiency of current society, improves nearly 10 percentage point; Isolation voltage can reach 1KVrms, also have peripheral hardware and start and the function, undervoltage lookout function, the soft start function that turn-off, and volume is little, and reliability is high, easy to use.
This embodiment can improve voltage stabilizing, increases work efficiency, and volume is little, and reliability is high, easy to use.
Claims (2)
1. one chip is isolated power module of voltage regulation, and it comprises PCB substrate package body (1) and plastic-sealed body (2), it is characterized in that described PCB substrate package body (1) comprises PWM IC, power output transformer occur; IC occurs in PWM and power output transformer has formed circuit of reversed excitation.
2. one chip according to claim 1 is isolated power module of voltage regulation, it is characterized in that the toroidal transformer of the toroidal core coiling that described power output transformer is iron sial magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101847251A CN103475226A (en) | 2012-06-07 | 2012-06-07 | Single-chip isolating regulated power supply module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101847251A CN103475226A (en) | 2012-06-07 | 2012-06-07 | Single-chip isolating regulated power supply module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103475226A true CN103475226A (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101847251A Pending CN103475226A (en) | 2012-06-07 | 2012-06-07 | Single-chip isolating regulated power supply module |
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| CN (1) | CN103475226A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111786541A (en) * | 2019-03-18 | 2020-10-16 | 台达电子工业股份有限公司 | Voltage regulation module |
| US11114946B2 (en) | 2019-03-18 | 2021-09-07 | Delta Electronics, Inc. | Voltage regulator module |
| US11546994B2 (en) | 2019-10-28 | 2023-01-03 | Delta Electronics, Inc. | Voltage regulator module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002596A (en) * | 1998-10-09 | 1999-12-14 | Lucent Technologies Inc. | Modular power supply having an input and output module and method of operation thereof |
| CN1356764A (en) * | 2001-12-28 | 2002-07-03 | 西安交通大学 | Process for preparing integrated electric and electronic module based on discrete elements |
| CN201075818Y (en) * | 2007-08-16 | 2008-06-18 | 深圳市华烨新科技实业有限公司 | Power adapter |
-
2012
- 2012-06-07 CN CN2012101847251A patent/CN103475226A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002596A (en) * | 1998-10-09 | 1999-12-14 | Lucent Technologies Inc. | Modular power supply having an input and output module and method of operation thereof |
| CN1356764A (en) * | 2001-12-28 | 2002-07-03 | 西安交通大学 | Process for preparing integrated electric and electronic module based on discrete elements |
| CN201075818Y (en) * | 2007-08-16 | 2008-06-18 | 深圳市华烨新科技实业有限公司 | Power adapter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111786541A (en) * | 2019-03-18 | 2020-10-16 | 台达电子工业股份有限公司 | Voltage regulation module |
| US11114946B2 (en) | 2019-03-18 | 2021-09-07 | Delta Electronics, Inc. | Voltage regulator module |
| US11212919B2 (en) | 2019-03-18 | 2021-12-28 | Delta Electronics, Inc. | Voltage regulator module |
| US11923773B2 (en) | 2019-03-18 | 2024-03-05 | Delta Electronics, Inc. | Voltage regulator module |
| US11546994B2 (en) | 2019-10-28 | 2023-01-03 | Delta Electronics, Inc. | Voltage regulator module |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |